Skip to main navigation Skip to Content

IPM

  • Director's Message
  • About IPM
  • The Constitution of IPM
  • Contact US
  • فارسي
  • Home
  • People
    • Administrative Board
    • Founding Fellows of IPM
    • Scientific Council of IPM
    • Academic Staff
  • Schools
    • Astronomy
    • Biological Sciences
    • Cognitive Sciences
    • Computer Science
    • Mathematics
    • Nano Science
    • Particles and Accelerators
    • Philosophy
    • Physics
  • Centers and Units
    • Brain Engineering Laboratory
    • Condensed Matter National Laboratory
    • Grid Computing Group
    • Iranian Light Source Facility
    • Iranian National Observatory
    • IRNIC
    • Library
    • Network Center
  • Publications
    • Akhbar
    • Papers
    • Books
    • Annual Report
  • Bulletin Board
  • Calendar
  • E - Catalog















Home
  • “ Schools ”

    IPM
    • Astronomy
    • Cognitive Sciences
    • Computer Science
    • Mathematics
    • Nano Science
    • Particles and Accelerators
    • Philosophy
    • Physics

    “ Centers and Units ”

    IPM
    • GCG Computing Group
    • Information Center
    • Iranian Light Source Facility
    • Iranian National Observatory
    • IRNIC
    • Library
    • Network Center

    “ Research Groups ”

    IPM
    • Bioinformatics
    • Combinatorics and Computing
    • Commutative Algebra
    • Logic
    • IPM HPC Laboratory

    “ Useful Links ”

    IPM
    • Gallery of Visitors
    • Contact Us
    • Gallery of Photos

    “ E-Services ”

    IPM
    • Webmail
    • Official Automation System
    • Library
    • Telephone Book
  • “School of Astronomy”

     
    Paper   IPM / Astronomy / 14932
       School of Astronomy
      Title: Self-gravity in Magnetized Neutrino-dominated Accretion Disks
      Author(s):
    1 . Narjes. Shahamat
    2 . Shahram. Abbassi
      Status: Published
      Journal: ApJ
      No.: 1
      Vol.: 845
      Year: 2017
      Supported by:           ipm IPM
      Abstract:
    In the present work we study self-gravity effects on the vertical structure of a magnetized neutrino-dominated accretion disk as a central engine for gamma-ray bursts (GRBs). Some of the disk physical timescales that are supposed to play a pivotal role in the late-time evolutions of the disk, such as viscous, cooling, and diffusion timescales, have been studied. We are interested in investigating the possibility of the occurrence of X-ray flares, observed in late-time GRBs' extended emission through the "magnetic barrier" and "fragmentation" processes in our model. The results lead us to interpret self-gravity as an amplifier for Blandford–Payne luminosity (BP power) and the generated magnetic field, but a suppressor for neutrino luminosity and magnetic barrier processes via highlighting the fragmentation mechanism in the outer disk, especially for the higher mass accretion rates.

    Download TeX format
    back to top
footer
  • -IPM
  • -20 Years
  • -INO
  • -ILSF
  • -GCG
  • -Iranet
  • -LIBRARY
  • -NIC
  • -BIO
  • -CCG
  • -Logic
prev next

Exploring IPM

  • People
    • Administrative Board
    • Senior Fellows of IPM
    • Scientific Council of IPM
    • Academic Staff
  • Schools
    • Astronomy
    • Biolgical Sciences
    • Cognitive Sciences
    • Computer Science
    • Mathematics
    • Nano Science
    • Particles and Accelerators
    • Philosophy
    • Physics
  • Centers
    • Brain Engineering Center
    • Condensed Matter National Laboratory
    • Deputy for Research
    • Grid Computing Group
    • Information Center
    • Iranian Light Source Facility
    • Iranian National Observatory
    • IRNIC
    • Library
    • Network Center
  • Groups
    • Bioinformatics
    • Combinatorics and Computing
    • Logic
    • Commutative Algebra
    • IPM HPC Laboratory
  • E-Services
    • Library Catalog
    • Official Automation System
    • Official Automation System (dabir)
    • Telephone Book
    • Webmail
  • Publications
    • Akhbar
    • Papers
    • Books

 COPYRIGHT 2012 © ALL RIGHTS RESERVED

Please submit your comments or questions here, or contact Webmaster  |  ipmic@ipm.ir